{"id":212350,"date":"2025-05-06T19:36:17","date_gmt":"2025-05-06T19:36:17","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=212350"},"modified":"2025-05-06T19:36:20","modified_gmt":"2025-05-06T19:36:20","slug":"the-protein-threads-that-trap-blood-cells-and-form-a-clot-are","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/06\/the-protein-threads-that-trap-blood-cells-and-form-a-clot-are\/","title":{"rendered":"The protein threads that trap blood cells and form a clot are"},"content":{"rendered":"\n<p>The protein threads that trap blood cells and form a clot are:<\/p>\n\n\n\n<p>(a) fibrinogen<br>(b) thrombin<br>(c) fibrin<br>(d) prothrombin<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p><strong>Correct Answer: (c) fibrin<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The formation of a blood clot is a critical process that prevents excessive bleeding when blood vessels are injured. This process, known as <strong>hemostasis<\/strong>, involves a complex cascade of events, including <strong>vascular constriction<\/strong>, <strong>platelet plug formation<\/strong>, and <strong>coagulation<\/strong>, which culminates in the formation of a stable <strong>fibrin clot<\/strong>.<\/p>\n\n\n\n<p>Fibrin is the <strong>insoluble protein<\/strong> that forms a mesh or &#8220;threads&#8221; which trap red blood cells, white blood cells, and platelets, thereby stabilizing the clot. This web-like structure seals the injured site and allows the wound to heal.<\/p>\n\n\n\n<p>Fibrin originates from a <strong>soluble plasma protein called fibrinogen<\/strong>. When an injury occurs, the <strong>coagulation cascade<\/strong> activates a protein called <strong>thrombin<\/strong>, which plays a central role in the clotting process. Thrombin acts as an enzyme that converts <strong>fibrinogen (a soluble protein)<\/strong> into <strong>fibrin (an insoluble protein)<\/strong>. Once formed, the fibrin strands interlace to form a stable clot that reinforces the platelet plug and effectively stops bleeding.<\/p>\n\n\n\n<p>To summarize the roles of each option:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>(a) Fibrinogen<\/strong>: This is the inactive, soluble precursor to fibrin. It circulates in the bloodstream and must be activated to form a clot.<\/li>\n\n\n\n<li><strong>(b) Thrombin<\/strong>: This is an enzyme that converts fibrinogen to fibrin. It is essential but does not form the threads itself.<\/li>\n\n\n\n<li><strong>(c) Fibrin<\/strong>: This is the <strong>correct answer<\/strong>. It forms the actual threads that trap blood cells and create the mesh-like structure of a blood clot.<\/li>\n\n\n\n<li><strong>(d) Prothrombin<\/strong>: This is an inactive precursor of thrombin. It must be activated to form thrombin, which then enables fibrin production.<\/li>\n<\/ul>\n\n\n\n<p>Understanding this cascade is essential in both physiology and clinical settings, especially when managing bleeding disorders or conditions involving inappropriate clot formation, such as deep vein thrombosis or stroke.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The protein threads that trap blood cells and form a clot are: (a) fibrinogen(b) thrombin(c) fibrin(d) prothrombin The correct answer and explanation is : Correct Answer: (c) fibrin Explanation: The formation of a blood clot is a critical process that prevents excessive bleeding when blood vessels are injured. This process, known as hemostasis, involves a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-212350","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/212350","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=212350"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/212350\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=212350"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=212350"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=212350"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}